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Finding the Fourth Proportional to 1,787,715.70, 2,681,573.55 and 1,694,403.70

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Solution

The fourth proportional to 1,787,715.70, 2,681,573.55 and 1,694,403.70 is: 2,541,605.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787,715.70 : 2,681,573.55 = 1,694,403.70 : x
  2. Step 2: Convert to fraction form
    1,787,715.70/2,681,573.55 = 1,694,403.70/x
  3. Step 3: Cross multiply
    1,787,715.70x = 2,681,573.55 × 1,694,403.70
  4. Step 4: Simplify right side
    1,787,715.70x = 4,543,668,144,942.14
  5. Step 5: Solve for x
    x = 4,543,668,144,942.14/1,787,715.70
  6. Step 6: Final answer
    x = 2,541,605.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.